Research paper topics, free example research papers

Aluminum - 1,420 words
Aluminum Aluminum is one of a number of soft
metals that scientists call poor metals. It can be
shaped and twisted into any form. It can be rolled
into thick plates for armored tanks or into thin
foil for chewing gum wrappers. It may be drawn
into a wire or made into cans. Aluminum is a
generally popular metal because it does not rust
and it resists wear from weather and chemicals.
(Bowman, 391) Aluminum is an element. Its atomic
number is thirteen and its atomic weight is
usually twenty-seven. Pure aluminum melts at
660.2C and boils at 2500C. Its density is 2.7
grams per cube centimeter. Aluminum is never found
uncombined in nature. (Bowman, 391) Aluminum is a
very useful metal that is ligh ...
Related: aluminum, food and drink, electric power, atomic number, resist

Arsenic - 1,749 words
Arsenic Element 33: Arsenic Abstract Arsenic is
element 33 on the periodic table and is in Group
15. Arsenic is obviously an extremely poisonous
element; however, some people have found arsenic
to have a restorative effect on them. Chemically,
arsenic is a metalloid. Two common forms of
arsenic are gray and yellow. (see Figure 1-A)
Element 33 has an atomic weight of 74.9216 and the
chemical symbol of As. It boils at 613C, melts at
817C, and has a density of 5.72. (see Figure 2-A)
The element has been known for centuries and can
be easily obtained from ores such as arsenopyrite
(FeAsS), realgar (As2S2), orpiment (As2S3), and
arsenic trioxide (As2O3). There are many uses for
arsenic. Among the ...
Related: arsenic, periodic table, skin diseases, chinese medicine, mystery

Arsenic - 401 words
Arsenic Element Arsenic may appear to be a
poisonous element. This is because it is used as a
poison for murder both in real life cases and in
made up books. But there are a lot of chemical
uses for arsenic such as it being a specimen.
Arsenic is also known arsenic in French, Arsen in
German, arsenico in Italian and arsenico in
Spanish. The atomic number of the element arsenic
is 33. The atomic weight is 74.92160(2). Its
symbol on the periodic table is As and its
electronic configuration is [Ar].3d10.4s2.4p3.
Arsenic occurs in two solid modifications: yellow,
and gray or metallic. Its color is tin- white
which tarnishes to dark gray or black. Its luster
is metallic but the tarnish will dull ...
Related: arsenic, ancient times, periodic table, atomic weight, periodic

Calcium Element - 228 words
Calcium Element Calcium Element symbol...CA Atomic
weight...40.08 Element number...20 Number of
protons...20 Number of electrons...20 Number of
neutrons...20 Density at...68? F Boiling
point...2,264?F Melting point...1,562?F Calcium
was discovered by Sir Humphrey Davis in 1808.
Calcium is a mineral found in abundance in the
Earths outer crust. It is the fifth most abundant
mineral in the Earth crust. Calcium is considered
a major mineral because it is found in large
quantity in the body. Milk also has a high amount
of calcium and it is the best way to get calcium.
Daily dietary requirements exceed over 100 mg.
Calcium forms and maintains teeth, it helps with
blood clotting, it helps build ce ...
Related: calcium, boiling point, atomic weight, melting point, davis

Dimitri Mendeleev - 639 words
Dimitri Mendeleev Dimitri Mendeleev Derived by
Dimitri Mendeleev, the periodic table may be one
of the most informational tables contained in
chemistry. By leaving gaps in the columns and
rows, Mendeleev was allowing for the discovery of
undiscovered elements of that time. From the
properties of the elements surrounding these gaps,
Mendeleev was able to predict the properties of
these undiscovered elements. Finally, when other
scientists discovered the tools of the periodic
table, Mendeleev's achievements were recognized.
Mendeleev was a versatile genius who was
interested in many various fields of study,
including pure and applied science. Dimitri
Ivanovich Mendeleev. (1834-1907) , Dimitri ...
Related: mendeleev, photoelectric effect, periodic table, applied science, oxidation

How Chemistry Affects My Daily Life - 705 words
How Chemistry affects my Daily Life I get up in
the morning and I breath in oxygen and I breath
out carbon dioxide. I get in the shower and use
water *. I use soap in the shower also. I dry the
water off with air molecules. I dry my hair by
using a hair dryer, which uses electricity.
Electrical affects are caused by the position and
the movement of positively and negatively charged
particles.I use cologne which has alcohol in it. I
wash my clothes using water and soap. I light a
candle. This is an example of combustion. For this
to occur there must be a presence of combustible
substance, a temperature high enough to cause
combustion, and the presence of oxygen or
chlorine. Of course when I l ...
Related: chemistry, daily life, periodic table, atomic weight, hydrogen

Lead - 845 words
Lead subject = Chemistry title = Lead Lead is a
lustrous, silvery metal that tarnishes in the
presence of air and becomes a dull bluish gray.
Soft and flexible, it has a low melting point (327
C). Its chemical symbol, Pb, is from plumbum, the
Latin word for waterworks, because of lead's
extensive use in ancient water pipes. Itsatomic
number is 82; its atomic weight is 207.19. Lead
and lead compounds can be highly toxic when eaten
or inhaled. Although lead is absorbed very slowly
into the body, its rate of excretion is even
slower. Thus, with constant exposure, lead
accumulates gradually in the body. It is absorbed
by the red blood cells and circulated through the
body where it becomes concen ...
Related: lead poisoning, melting point, disease control, ancient egypt, yellow

Marie - 1,335 words
Marie And Pierre Curie Marie Sklodowska ( a.k.a.)
was born in Warsaw in 1867. Her parents were
teachers who believed strongly in the importance
of education. Marie had her first lessons in
physics and chemistry from her father. She had a
brilliant aptitude for study and a great thirst
for knowledge; however, advanced study was not
possible for women in Poland. Marie dreamed of
being able to study at the Sorbonne in Paris, but
this was beyond the means of her family. To solve
the problem, Marie and her elder sister, Bronya,
came to an arrangement: Marie should go to work as
a governess and help her sister with the money she
managed to save so that Bronya could study
medicine at the Sorbonne. ...
Related: marie, atomic weight, point of view, scientific community, academy

Marie - 1,223 words
... not being used. Theyre the work of separation
and analysis began. Marie performed the chemical
separations, while Pierre did the measurements
after each successive step. Physically it was
heavy work for Marie. She processed 20 kilos of
raw material at a time. She had to clear away pine
needles and debris, then she had to undertake the
work of separation. In that shed they performed
their experience and Marie writes that they spent
the best times of their lives. Sometimes they
could not do their processing outdoors, so the
harmful gases had to be let out through the open
windows. The only furniture was an old, worn pine
table where Marie worked with her costly radium
fractions. Since the ...
Related: marie, marie curie, research institute, doctor who, subsequently

Mendeleev Was Born In Tobolsk, Siberia He Was The Youngest Child Of A Large Family His Father Was A Local School Teacher Whos - 418 words
Mendeleev was born in Tobolsk, Siberia. He was the
youngest child of a large family . his father was
a local school teacher whose career was ended by
blindness and o support his family his mother ran
a glass factory. Mendeleev learned some science
from a political refugee who married one of his
sisters. His father died in 1847, and soon after
his mothers factory was destroyed by fire. She
left Tobolsk with Mendeleev, she was determined
that her last son should receive a good education.
He studied chemistry at the University of Saint
Petersburg, and in 1859 he was sent to study at
the University of Heidelberg. There he met the
Italian chemist Stanislao Cannizzaro, whose views
on atomic weight ...
Related: mendeleev, school teacher, siberia, whos, youngest

Mercury - 514 words
Mercury Mercury Atomic Number: 80 Latin:
hydrargyrum liquid silver Atomic Symbol: Hg Atomic
Weight: 200.59 Mercury is the only common metal
that is a free-flowing liquid at room temperature.
It is slightly volatile in room temperature and
becomes solid when subjected to a pressure of 7640
atmospheres. The metal dissolves in nitric or
concentrated sulfuric acid. The chief ore is
cinnabar; Spain and Italy produce about 50% of the
worlds supply of the metal. The commercial unit
for handling mercury is the flask, which weighs
about 76 pounds. The metal is obtained by heating
cinnabar in a current of air and by condensing the
vapor. The metal is widely used in laboratory work
for making thermomet ...
Related: mercury, gastrointestinal tract, online encyclopedia, daily life, poisoning

Nitrogen - 590 words
Nitrogen Nitrogen, symbol N, gaseous element that
makes up the largest portion of the earth's
atmosphere. The atomic number of nitrogen is 7.
Nitrogen is in group 15 (or Va) of the periodic
table. Nitrogen was discovered by the British
physician Daniel Rutherford in 1772 and recognized
as an elemental gas by the French chemist, Antoine
Laurent Lavoiser about 1776. Nitrogen is a
colorless, odorless tasteless, nontoxic gas. It
can be condensed into a colorless liquid, which
can be compressed into a colorless, crystalline
solid. Nitrogen exists in two natural forms, and
four radioactive forms (artificial). Nitrogen
melts at -210.01 degrees C, (-349.02 F), boils at
-195.79 C (320.42 F), and has ...
Related: nitrogen, modern world, chemical industry, atomic weight, copper

Oxygen - 1,067 words
... bon dioxide from the blood into the lungs and
the breathing out of air), constitutes only one
phase of respiration. A second phase of it is the
transportation of oxygen by the blood from the
lungs to the tissues and of carbon dioxide from
the tissues to the lungs. A third phase is the
absorption (passage by diffusion) of oxygen into
the tissue cells and tissue use of oxygen (the
oxidative and other respiratory processes with in
the tissues cells whereby energy is liberated).
External respiration involves the exchange of
gases between the circulation blood and the air.
For this exchange to take place, a person needs a
large moist surface where air and blood can come
in close contact. The ...
Related: oxygen, atomic weight, atomic number, addison wesley, hunger

Phosphorus - 1,137 words
Phosphorus The element that is featured in this
report is phosphorus. Phosphorus is a chemical
element that human beings, animals, and plants
need for normal growth. The main use of phosphorus
is fertilizer. It was difficult to find a lot of
different information on this element. Description
Phosphorus is a nonmetallic chemical element that
can exist in several different forms. The chemical
symbol for phosphorus is P, its atomic number is
15, and its atomic weight is 30.975. Phosphorus
was first prepared by the German alchemist Hennig
Brandt in 1669; in the course of his search for
the philosophers stone he obtained from a residue
of evaporated urine a white solid that glowed in
the dark and ...
Related: phosphorus, water pollution, different forms, atomic number, stable

Platinum - 866 words
Platinum I am a silvery metal that is as resistant
to corrosion and tarnishing as gold. I am almost
as rare and consequently am the likewise highly
valued and used in Jewelry. I am also used in
chemicals industry as a catalyst, in medicine as
an anti-cancer drug, and in catalytic converters
for car exhausts. I have an atomic number ok 78,
my atomic weight is 195.09 (when rounded 195) and
a symbol of Pt. Who am I? Im platinum of coarse!
Platinum is a member of the six transition
elements in Group VIII of the periodic table known
collectively as the platinum metals (ruthenium,
rhodium, palladium, osmium, iridium, and
platinum). The name is derived from the Spanish
platina, meaning, silver. The ...
Related: platinum, boiling point, south america, atomic weight, abundance

Platinum - 475 words
Platinum subject = Chemistry title = Platinum
Platinum is a relatively rare, chemically inert,
metallic element. It symbol is Pt, atomic number
is 78, and its atomic weight is 195.09. Platinum
is one of the heaviest substances known. One cubic
foot of Platinum weighs 21 times as much as a
cubic foot of water. A grayish-white metal,
Platinum has a melting point of 1772 degrees C and
a realatively high boiling point of 3827 degrees
C. It has a high fusing point, is ductile and
malleable, expands slightly upon heating, and has
high electrical resistance. Platinum is seldom
used in its pure stage because it is too soft. The
third most ductile metal, it can be drawn into a
thread one twenty thous ...
Related: platinum, atomic number, julius caesar, melting point, engine

Potassium - 646 words
Potassium potassium puh-tas'-ee-uhm The chemical
element potassium is a soft, light, silver white
metal. It is a member of the alkali metals, a
group (IA of the periodic table) with similar
physical and chemical properties. Its chemical
symbol is K (from kalium, the Latinized version of
the Arabic word for alkali). Its atomic number is
19, and its atomic weight is 39.098. Potassium was
first made from potash, or potassium carbonate
(K(2)CO(3)), which had important industrial uses
in glass manufacture well before 1700. (It was
often mistaken for sodium carbonate, or soda. Only
their different sources prevented total confusion,
potash being originally derived from the ashes of
vegetable materi ...
Related: potassium, earth's crust, cardiac arrest, sir humphry davy, nervous

The Development Of The Atomic Theory - 1,467 words
The Development Of The Atomic Theory The Greek
concept of atomos: the atom Around 440 BC
leucippus of Miletus originated the atom concept.
He and his pupil, Democritus of abdera refined it
for future use. Their atomic idea has five major
points. All original writings of leucippus and
Democritus are lost. The only sources we have for
there atomistic ideas are inquotations from other
writers. Democritus was known as the laughing
philosopher because he enjoyed life so much. At
this time Greek philosophy was about 150 years
old, emerging in the sixth century bc, centered in
the city of miletus on the ionian coast in Asia
minor, which is now turkey. The work of leucippus
and Democritus was furthe ...
Related: atomic, atomic number, atomic weight, john dalton, scientific basis

Things Are Different From Each Other, And Each Can Be Reduced To Very Small Parts Of Itself Ancient Knowledge - 596 words
Things are different from each other, and each can
be reduced to very small parts of itself. -
Ancient knowledge This was noticed early by
people, and Greek thinkers, about 400BC, used the
words "element', and `atom' to describe the
differences and smallest parts of matter. These
ideas survived for 2000 years while concepts such
as `Elements' of Earth, Fire, Air, and Water to
explain `world stuff' came and went. Much later,
Boyle, an experimenter like Galileo and Bacon, and
who was influenced much by Democritus, Gassendi,
and Descartes, lent important weight to the atomic
theory of matter in the 1600s. It was Lavoisier
who divided the few elements known in the 1700's
into four classes, and t ...
Related: chemical elements, inorganic chemistry, periodic table, occurring, hubbard

Titanium - 522 words
Titanium William Gregor in 1791, who was
interested in minerals, discovered titanium. He
recognized the presence of a new element, now
known as titanium, in menachanite, a mineral named
after Menaccan in Cornwall (England). Several
years later, the element was rediscovered in the
ore rutile by a German chemist, Klaproth. The pure
elemental metal was not made until 1910 by Matthew
A. Hunter, who heated TiCl4 together with sodium
in a steel bomb at 700-800C. Titanium is used for
alloys with aluminum, molybdenum, manganese, iron,
and other metals. These alloys of titanium are
used principally in the aerospace industry, for
both airframes and engines, where lightweight
strength and ability to wi ...
Related: titanium, periodic table, aerospace industry, atomic number, optical